These two bombs are going to create a disturbance in the Force so massive, it would probably give the Jedi strokes. SyFy's done this before with Ursula K. Le Guin's Earthsea and well, it failed so horribly, that Le Guin has referred to it as "Frankenstein's Earthsea". I've never watched it (thank the Living Force), but one review paints a picture of a series that was processed into a sub-standard fantasy miniseries, which is par on course with all their other fantasy offerings.
While I've never read Childhood's End (a gross oversight on my part which will be remedied) or Ringworld (a deliberate choice because I have qualms about Niven himself), I'm cringing like a motherfrakker at what fate will befall them and what we'll actually see on TV. My guess, the aliens in the former won't look like demons, but humans in Nehru suits or generic "scifi" jumpsuits. Meanwhile, the aliens in the latter will be of the cheapest CGI possible. Who knows, SyFy might surprise us and break a $20 and splurge in that area.